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All Journal Elektron Jurnal Ilmiah SITEKIN: Jurnal Sains, Teknologi dan Industri Brilliance: Research of Artificial Intelligence Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat International Journal of Advanced Science Computing and Engineering Jurnal Rekayasa elektrika
Silfia Rifka
Politeknik Negeri Padang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Other

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RESTORASI CITRA MENGGUNAKAN JARINGAN SARAF TIRUAN (HOPFIELD) Silfia Rifka
Elektron : Jurnal Ilmiah Vol 1 No 2 (2009): Elektron Jurnal Ilmiah
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1739.394 KB) | DOI: 10.30630/eji.1.2.19

Abstract

The final goal of restoration is image improvement. In general, restoration to degradation modeling and implementation of invers process to get real image. Hopefield method in neural network restoration of image is done by parameters approximation in neural network modeling and reconstruction of degradation image to get real image. In this paper, this method is used image restoration which combines with Gaussian Blur, Uniform Blur and Gaussian Noise. The restoration process using this method take place really fast and suitable to defects restoration of recorder device which recognize the cause of defects and high process speed is needed.
Implementasi Pengolahan Citra Untuk Identifikasi Daun Tanaman Obat Menggunakan Levenberg-Marquardt Backpropagation Atsilfia Alfath Syam; Silfia Rifka; Siska Aulia
Elektron : Jurnal Ilmiah Volume 13 Nomor 1 Tahun 2021
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.0.0.176

Abstract

Digital Image processing implementation can be applied to identify medicinal leaves, because it can help the elderly and people with color-blindness in identifying medicinal leave to be consumed and in avoiding reading errors, since some leaves have similar shape and color . In this discussion, the feature-extractions are using color and shape features, and using Levenberg-Marquardt for pattern recognition algorithm. The success of this medicinal plant identification system resulted in fairly good accuracy. The backpropagation network architecture used two hidden layers with 10 and 5 neurons. Data training is using 60 training leaf images with 15 images each of 5 types: green betel leaf, red betel, soursop, castor and aloe vera. Then, offline testing is using 20 test images for each of 4 images from 5 types with the accuracy of 85%. Meanwhile the online (realtime) test is using 20 times for each leaf types so the accuracy is 88%.
Optimalisasi Capaian Pembelajaran Matakuliah Berbasis Pemrograman Melalui Media E-Learning Ratna Dewi; Silfia Rifka; Rikki Vitria; Uzma Septima; Ramiati Ramiati
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 18, No 1 (2020): Desember 2020
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v18i1.11628

Abstract

Pandemik Covid-19 yang dialami seluruh dunia saat ini termasuk Indonesia, memaksa pembelajaran dilakukan secara daring atau e-learning termasuk pada Politeknik Negeri Padang. Dengan kendala yang ada pada mahasiswa sebagai peserta didik dalam sistem pembelajaran ini yaitu kendala dalam mengakses sistem melalui jaringan internet dan belum semua mahasiswa memiliki perangkat komputer yang dibutuhkan dalam mengaplikasikan matakuliah berbasis pemrograman. Agar capaian pembelajaran tetap bisa dicapai secara optimal maka dalam penelitian ini dibuat web untuk sistem pembelajaran daring atau e-learning. Dari hasil penggunaan web ini 82,9 % mahasiswa memahami materi yang ditayangkan dalam web tersebut dan sebagain besar mahasiswa menginginkan materi dalam bentuk video offline sehingga dapat digunakan setiap saat.
Coronavirus: Buku Edukasi Visual Untuk Anak-Anak Usia Sekolah Dasar Ihsan Lumasa Rimra; Riza Widia; Wiwik Wiharti; Efrizon Efrizon; Zas Ressy Aidha; Silfia Rifka; Amelia Yolanda; Randy Heriyanto; Dedi Kurniadi
Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Vol 2 No 2 (2020)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.44 KB)

Abstract

Kegiatan pengabdian pada masyarakat COVID19 dengan judul “Coronavirus: Buku Edukasi Visual Untuk Anak-Anak Usia Sekolah Dasar” ini bertujuan untuk memberikan pengetahuan dan pemahaman mengenai COVID19 kepada anak-anak dalam rentang umur sekolah dasar yaitu antara 6 tahun sampai dengan 12 tahun dengan harapan dapat memberikan suatu perbaikan tata nilai bagaimana anak-anak menyikapi dan bertindak agar tidak terpapar COVID19 tersebut dan memutus mata rantai penyebaran COVID19. Buku edukasi visual ini dipaparkan sesuai dengan pola perkembangan otak dan pola berpikir anak-anak dalam usia sekolah dasar sehingga isi yang terkandung dalam buku edukasi visual tersebut dapat tersampaikan secara maksimal kepada anak-anak.Pendekatan dalam memberikan dan penyampaian pemahaman kepada anak-anak perlu disesuaikan dalam bentuk visual karena anak-anak akan lebih paham dengan pendekatan ini. Buku edukasi visual ini disebarkan utamanya kepada anak-anak yang berada dalam daerah, kecamatan, kelurahan, lokasi zona merah penyebaran COVID19 yang terbesar dan tertinggi di Kota Padang.Kasus anak-anak terjangkit COVID19 di Kota Padang tidak menunjukkan perkembangan yang signifikan karena telah terjadi perubahan sikap anak-anak menghadapi COVID19 ini.
Web Service Menggunakan Internet Protocol versi 6 (IPv6) Bagi Siswa Program Keahlian Teknik Komputer Dan Jaringan SMKN 1 Gunung Talang Ihsan Lumasa Rimra; Aprinal Adila Asril; Silfia Rifka; Wiwik Wiharti; Ikhram Hidayatullah
Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Vol 4 No 2 (2022)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.417 KB) | DOI: 10.30630/jppm.v4i2.914

Abstract

Kegiatan ini bertujuan memberikan pemahaman dan keterampilan praktis bagi siswa terkait penggunaan IPv6 sebagai format pengalamatan masa depan untuk Internet. IPv6 dengan lebar alamat yang lebih besar, akan menggantikan fungsi pengalamatan IPv4 yang ketersediannya sudah habis. Setiap perangkat berbasis komputer yang terhubung ke Internet harus memiliki identitas berupa IP address. IP address awal yang digunakan adalah format IPv4 dengan kombinasi 232 bit. IPv4 tidak lagi mampu mengakomodir perkembangan Internet yang sangat pesat, sehingga IPv6 dengan kombinasi 2128 dibutuhkan menjawab tantangan tersebut. Menyikapi revolusi industri 4.0 yang menjadikan Internet sebagai basis teknologinya dan program pemerintah dalam mewujudkan transformasi digital, maka sudah saatnya bahwa Indonesia harus mampu beradaptasi dalam penggunaan IPv6. Saat ini, kebutuhan tenaga terampil bidang TIK khususnya IPv6 sangat dibutuhkan. Siswa SMK pada bidang keahlian TIK berpotensi menjadi ujung tombak yang kompeten untuk membangun Indonesia dalam rangka mencapai misi tersebut.Menjadi peluang bagi PNP memberikan keterampilan dan pengetahuan praktis mengenai IPv6 yang baik sehingga lulusan SMK bidang keahlian TKJ memiliki kompetensi utama dalam menjawab tantangan tersebut. Pengujian IPv6 ini diterapkan pada layanan web. Setelah kegiatan pengabdian diharapkan para siswa TKJ SMKN 1 Gunung Talang dapat memahami, mengkonfigurasi dan menguji IPv6 serta memperhatikan faktor-faktor terkait IPv6. Kegiatan ini dimulai dengan perancangan dan pembuatan perangkat web server, konfigurasi web server dan pengujian melalui komputer klien dengan format pengalamatan yang sama yaitu IPv6.
Penerapan Embedded System pada Sistem Pintar Pengendali Multi Perangkat dalam Kelas berbasis Intel Galileo dan Web Silfia Rifka; Firdaus Firdaus; Waldito Febri Ramadhan
Jurnal Rekayasa Elektrika Vol 14, No 1 (2018)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1640.666 KB) | DOI: 10.17529/jre.v14i1.9790

Abstract

Smart systems are widely used in smart building, smart home, smart car, smart class, and others. The smart system in this paper is the result of research, exploit module microcontroller Intel Galileo technology and the Internet of Things (IoT) as a controller, which controlled devices connected to the system remote control from a web-based accessible via smart devices (smartphones, tablets, and laptops). Intel Galileo is a microcontroller module that combines a mini computer and Arduino is open source and supports IOT technology and the web. Web selection as a remote control in this research to facilitate system users to be able to control the system remotely by using the existing browsers on smart devices although the operating system is different. The devices controlled in this system are the LED (on-off automatically and setting the intensity of light), air conditioning (on-off automatically, temperature settings), a projector (on-off), and the IP camera (moved up, down, left and right) to monitor the room. All controlled embedded devices to facilitate the control and effective use of smart controllers resulting in a centralized system for multi-devices in the classroom to realize the smart class.
Load Balancing and Fail Over MikroTik Implementation Using Per Connection Classifier (PCC) on Two Internet Providers Interconnection Wiwik Wiharti; Ihsan Lumasa Rimra; Silfia Rifka; Ikhram Hidayatullah; Andre Febrian Kasmar
International Journal of Advanced Science Computing and Engineering Vol 5, No 2 (2023)
Publisher : SOTVI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/ijasce.5.2.135

Abstract

Load balancing is tasked with dividing and balancing the traffic load on two or more ISPs in a balanced way so that the output obtained when using this technique is to maximize throughput, minimize response time and avoid overload on one ISP line when one of the ISPs experiences a disconnection. This can be seen from the automatic connection switching to an active ISP gateway, so that network performance continues to run normally. Throughput testing in the morning, afternoon, and evening showed very good value changes after load balancing was applied. Delay and Packet Loss tests also show a change in value from bad to very good after the implementation of the Load balancing system. The results of this study indicate that in measuring network performance for conditions of delay, packet loss, jitter and throughput before and after system implementation using load balancing and failover with the Per Connection Classifier (PCC) method, different results were found
Penerapan Embedded System pada Sistem Pintar Pengendali Multi Perangkat dalam Kelas berbasis Intel Galileo dan Web Silfia Rifka; Firdaus Firdaus; Waldito Febri Ramadhan
Jurnal Rekayasa Elektrika Vol 14, No 1 (2018)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v14i1.9790

Abstract

Smart systems are widely used in smart building, smart home, smart car, smart class, and others. The smart system in this paper is the result of research, exploit module microcontroller Intel Galileo technology and the Internet of Things (IoT) as a controller, which controlled devices connected to the system remote control from a web-based accessible via smart devices (smartphones, tablets, and laptops). Intel Galileo is a microcontroller module that combines a mini computer and Arduino is open source and supports IOT technology and the web. Web selection as a remote control in this research to facilitate system users to be able to control the system remotely by using the existing browsers on smart devices although the operating system is different. The devices controlled in this system are the LED (on-off automatically and setting the intensity of light), air conditioning (on-off automatically, temperature settings), a projector (on-off), and the IP camera (moved up, down, left and right) to monitor the room. All controlled embedded devices to facilitate the control and effective use of smart controllers resulting in a centralized system for multi-devices in the classroom to realize the smart class.
Installation and Activation of Fiber To The Home (FTTH) Networks and Macrobending Problems in the Feeder Cable Segment Yustini; Aprinal Adila Asril; Herry Setiawan; Popy Maria; Silfia Rifka
Brilliance: Research of Artificial Intelligence Vol. 3 No. 2 (2023): Brilliance: Research of Artificial Intelligence, Article Research November 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v3i2.2967

Abstract

Macrobending is a form of disturbance in Fiber To The Home (FTTH) networks that occurs due to macro-level bending of the cable caused by damage to the fiber optic. Macrobending frequently occurs in FTTH networks within the feeder cables. Feeder cables serve as connectors between the Optical Line Terminal (OLT) and Optical Distribution Cabinet (ODC) in the FTTH system. The occurrence of macrobending in feeder cables affects the quality of the FTTH network. In this study, the impact of macrobending is analyzed based on curvature diameters of 50 cm, 25 cm, and 5 cm on feeder cables before and after FTTH network activation. Before FTTH network activation, the High Super Luminescent Diode (HSL) is used as the input power source, whereas after activation, the input power source comes from the OLT using Small Form-factor Pluggable (SFP) modules. The attenuation (loss) before activation due to macrobending, with curvature diameters of 50 cm, 25 cm, and 5 cm, is found to be 0.02 dB, 0.05 dB, and 0.26 dB, respectively. After activation, the attenuation with the same curvature diameters is measured as 0.01 dB, 0.02 dB, and 0.20 dB, respectively. It is observed that as the curvature diameter decreases, the attenuation increases. The comparison of attenuation before and after network activation doesn't show a significant difference because the input power doesn't affect macrobending, rather it is influenced by the curvature diameter.
Co-Authors Amelia Yolanda Anak Agung Gede Sugianthara Andre Febrian Kasmar aprinal adila asril Aprinal Adila Asril Atsilfia Alfath Syam dedi kurniadi Efrizon Efrizon Firdaus Firdaus Herry Setiawan Ikhram Hidayatullah Ikhram Hidayatullah Popy Maria Ramiati Ramiati Randy Heriyanto Ratna Dewi Rikki Vitria Rimra, Ihsan Lumasa Riza Widia Siska Aulia Uzma Septima - Waldito Febri Ramadhan Wiwik Wiharti Wiwik Wiharti Yustini Zas Ressy Aidha